在java中执行Karaf命令
下面的代码在控制台中执行karaf命令在java中执行Karaf命令,java,osgi,apache-karaf,karaf,blueprint-osgi,Java,Osgi,Apache Karaf,Karaf,Blueprint Osgi,下面的代码在控制台中执行karaf命令 public class DummyCallable { @Inject protected SessionFactory sessionFactory; private Session session; private ExecutorService executor; private ByteArrayOutputStream byteArrayOutputStream; private PrintSt
public class DummyCallable {
@Inject
protected SessionFactory sessionFactory;
private Session session;
private ExecutorService executor;
private ByteArrayOutputStream byteArrayOutputStream;
private PrintStream printStream;
private PrintStream errStream;
public DummyCallable() {
byteArrayOutputStream = new ByteArrayOutputStream();
printStream = new PrintStream(byteArrayOutputStream);
errStream = new PrintStream(byteArrayOutputStream);
executor = Executors.newCachedThreadPool();
session = sessionFactory.create(System.in, printStream, errStream);
}
public String executeCommand(final String command) throws IOException {
byteArrayOutputStream.flush();
byteArrayOutputStream.reset();
String response;
FutureTask<String> commandFuture = new FutureTask<String> (new Callable<String>() {
public String call() {
try {
System.err.println(command);
session.execute(command);
}
catch (Exception e) {
e.printStackTrace(System.err);
}
printStream.flush();
errStream.flush();
return byteArrayOutputStream.toString();
}
});
try {
executor.submit(commandFuture);
response = commandFuture.get(10000L, TimeUnit.MILLISECONDS);
}
catch (Exception e) {
e.printStackTrace(System.err);
response = "SHELL COMMAND TIMED OUT: ";
}
System.err.println(response);
return response;
}
}
有人能帮我吗?@Inject在卡拉夫不起作用。如果您使用karaf 4,您可以使用org.apache.karaf.shell.api.action.lifecycle包中的@Reference。那么如何在karaf中新建SessionFactory对象呢?顺便说一句,这是在OpenDaylights中实现的。它可能不是命令,而是“调用命令的东西”,因此可能是一个声明性的
@组件
,带有DSYes中的@引用
。。我认为你是对的。它应该是DS@引用
java.lang.NullPointerException
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)